Students study graphs showing the source of greenhouse gases, historic levels of carbon dioxide, and global temperatures.

Question

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Question
Which ,begin emphasis,three,end emphasis, factors have ,begin emphasis,most,end emphasis, likely caused the changes in global temperatures over the past 100 years?

Answer options with 6 options
A.
Earth's movement ended the ice age and increased temperatures.

B.
More people worldwide are using fossil fuels as energy sources for transportation.

C.
Manufacturers are producing more industrial goods to meet a growing demand for products.

D.
The amount of carbon dioxide follows a 100-year cycle and is currently in a period of higher levels.

E.
Scientists collect more accurate temperature measurements now, which makes previous data inaccurate.

F.
People have increased their demand for electricity along with the use of fossil fuels to generate electricity.

Answer 1

The three factors that have most likely caused the changes in global temperatures over the past 100 years are:

B. More people worldwide are using fossil fuels as energy sources for transportation.

C. Manufacturers are producing more industrial goods to meet a growing demand for products.

F. People have increased their demand for electricity along with the use of fossil fuels to generate electricity.

These options highlight the significant role of human activities, particularly the combustion of fossil fuels and increased industrialization, in contributing to greenhouse gas emissions and consequently influencing global temperatures.